LND2931 Datasheet, PDF (1/5 Pages) Linear Dimensions Semiconductor – 100mA Low Dropout Voltage Regulator

DATA SHEET
LND2931
100mA Low Dropout Voltage Regulator
GENERAL DESCRIPTION
This series of fixed-voltage and adjustable
monolithic micropower voltage regulators is
designed for a wide range of applications. This
device is an excellent choice for use in battery-
powered application. Furthermore, the
quiescent current increases only slightly at
dropout, which prolongs battery life. This series
of fixed-voltage ( Typ. 60mV at light load and
300mV at 100mV) includes a tight initial
tolerance of 0.5% typ., extremely good load and
line regulation of 0.05% typ., and very low output
temperature coefficient. This series of fixed-
voltage and adjustable regulators is offered in 3-
pin TO-92 package (TO-220-5, SO-8 for
LND2931) compatible with other fixed-voltage
regulators.
PIN CONFIGURATION
Output 1
8 Input
GND ²
7
LND2931
GND
GND ³
6 GND
Feedback ⁴
5 _Shutdown
FEATURES
• 3- terminal regulators ( To-220-5, SO-8
for LND2931)
• 100mA output within 2% over
temperature
• Very low quiescent current
• Low dropout voltage (300mV Typ)
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Unregulated DC input can withstand
–20V reverse battery and +60V positive
transients
• Direct replacement for National
LM2931 fixed series, but has lower
ground current, higher accuracy of
output voltage and extremely tight load
and line regulation. For adjust model
LND2931 see typical applications on
figure 2.
APPLICATIONS
• High-efficiency linear regulators
• Battery powered systems
• Portable/Palm top/ Notebook
Computers
• Portable consumer equipment
• Portable instrumentation
• Automotive Electronics
• SMPS Post Regulator
• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel [phone] • fax [phone] • www.lineardimensions.com •